The refresh rate of a LED Display is the number of times in a second that the LED Display hardware drawsthe data. This is distinct from the measure of frame rate in that the refreshrate for LED Displays includes the repeated drawing of identical frames, whileframe rate measures how often a video source can feed an entire frame of newdata to a display.

For example, most movie projectors advance from one frame to the next one 24times each second. But each frame is illuminated two or three times before thenext frame is projected using a shutter in front of its lamp. As a result, themovie projector runs at 24 frames per second, but has a 48 or 72 Hz refreshrate.

Increase refresh rate for decreasing LED Display flickering

On LED Displays, increasing the refresh rate decreases flickering, therebyreducing eye strain. However, if a refresh rate is specified that is beyondwhat is recommended for the LED Display, damage to the display can occur.

Normally our LED Displays of Vegas LED Displays have a refresh rate of over300Hz, which is more than 5 times the refresh rate of a normal cathodetelevision which is 50Hz (PAL and SECAM) or 60Hz (NTSC). For football stadiums(stadium LED Displays and perimeter LED Displays) our LED Displays can reach arefresh rate of over 800Hz, which means that they won’t show any flickeringwhen recorded with a video camera and broadcasted live on television.